If owners and members could please use this thread as the official AVR600 thread and post comments and questions here, hopefully we can then give some quality information on this product for existing members and future ones too 
I heard you John. The reviewer did mention that AV888, with Wolfson Dacs, and the matching Arcam Multichannel Power Amp.I had one of these for approx a month Bob and that is what led me on to buy the AV888, the sound is stunning for this receiver, probably the best I have heard to date with the AV888 being quite a nice step up yet again...
Did you check that you have the latest software in the Receiver?I have an issue, sound is super loud or low when turning everything on. Just driving me crazy. Any ideas on what to check with this?
You need to download the software from the link provided, just find your product which is the AVR600 and then if you can use the Mac book Pro in windows mode follow the guide provided with the softwareI just checked, firmware needs to be updated. How can I do this? I have a Macbook Pro?